A method has been developed of calculating fixed-time signal plans which give buses a measure of priority over other vehicles. The calculations are made by an extension of the TRRL TRANSYT method. The method has been applied to the network of 95 signals in central Glasgow. In comparison with signal plans calculated by the normal TRANSYT method, the extended method improved bus journey speeds by an average of 8 percent during the working day. There were no significant changes in the average speed of other traffic. These results are in good agreement with the predictions made by the TRANSYT simulation. It is estimated that the net community benfits attributable to using BUS TRANSYT in Glasgow exceed 100,000 L ($232,000) per year at no extra cost in equipment. The benefits would be likely to be much larger if the normal signal timing had been derived by less efficient methods than TRANSYT. /Author/

  • Supplemental Notes:
    • Proceedings of the 6th International Symposium on Transportation and Traffic Theory held at the University of New South Wales, Sydney, Australia from 26-28 August 1974.
  • Corporate Authors:

    Elsevier Publishing Company, Incorporated

    52 Vanderbilt Avenue
    New York, NY  United States  10017
  • Authors:
    • Robertson, P I
    • Vincent
  • Conference:
  • Publication Date: 1974-8

Media Info

  • Pagination: p. 285-306
  • Serial:
    • Volume: 6

Subject/Index Terms

Filing Info

  • Accession Number: 00099280
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 10 1975 12:00AM